Yeah the adjustment period is different for every frog, and you may experience it in different ways. Just give them time to settle in, try not to bug them too much and keep them in a quiet environment without too much noise or stress, and this will reduce the settling time.

I covered my baby Whites' and Tomops' tank with paper taped to the outside so he couldn't see us and I couldn't see him for the first month. I removed one piece of paper every week, and that seemed to help his adjustment. He felt safer I think.